add --dry-run support to remove, autoorphans, autoremove

TODO

@@ -4,8 +4,6 @@ packages list таск
 
 аналог epm purge: запоминаем список файлов, удаляем пакеты и по возможности всё, от чего зависит (рекурсивно).
 
---dry-run при удалении (--print)
-
 epm autoremove [libs|python|perl|libs-devel]
 
 --interactive

bin/epm

@@ -79,6 +79,7 @@ verbose=
 quiet=
 nodeps=
 noremove=
+dryrun=
 force=
 short=
 direct=
@@ -334,6 +335,9 @@ check_option()
     --noremove|--no-remove)  # HELPOPT: exit if any packages are to be removed during upgrade
         noremove="--no-remove"
         ;;
+    --dry-run|--simulate|--just-print|-recon--no-act) # HELPOPT: print only (autoremove/autoorphans only)
+        dryrun="--dry-run"
+        ;;
     --short)              # HELPOPT: short output (just 'package' instead 'package-version-release')
         short="--short"
         ;;

bin/epm-autoorphans

 #!/bin/sh
 #
-# Copyright (C) 2015, 2016  Etersoft
-# Copyright (C) 2015, 2016  Vitaly Lipatov <lav@etersoft.ru>
+# Copyright (C) 2015, 2017  Etersoft
+# Copyright (C) 2015, 2017  Vitaly Lipatov <lav@etersoft.ru>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -32,18 +32,25 @@ case $PMTYPE in
 	apt-rpm)
 		# ALT Linux only
 		assure_exists /etc/buildreqs/files/ignore.d/apt-scripts apt-scripts
+		if [ -z "$dryrun" ] ; then
 			echo "We will try remove all installed packages which are missed in repositories"
 			warning "Use with caution!"
+		fi
 		local PKGLIST=$(__epm_orphan_altrpm \
 			| sed -e "s/\.32bit//g" \
 			| grep -v -- "^eepm$" \
 			| grep -v -- "^kernel")
-		docmd epm remove $PKGLIST
+
+		if [ -n "$quiet" ] ; then
+			echo "$PKGLIST"
+		else
+			docmd epm remove $dryrun $PKGLIST
+		fi
 		;;
 	apt-dpkg|aptitude-dpkg)
 		assure_exists deborphan
 		showcmd deborphan
-		a='' deborphan | docmd epm remove
+		a='' deborphan | docmd epm remove $dryrun
 		;;
 	#aura)
 	#	sudocmd aura -Oj
@@ -51,18 +58,22 @@ case $PMTYPE in
 	yum-rpm)
 		showcmd package-cleanup --orphans
 		local PKGLIST=$(package-cleanup -q --orphans | grep -v "^eepm-")
-		docmd epm remove $PKGLIST
+		docmd epm remove $dryrun $PKGLIST
 		;;
 	dnf-rpm)
 		# TODO: dnf list extras
 		# TODO: Yum-utils package has been deprecated, use dnf instead.
 		showcmd package-cleanup --orphans
 		local PKGLIST=$(package-cleanup -q --orphans | grep -v "^eepm-")
-		docmd epm remove $PKGLIST
+		docmd epm remove $dryrun $PKGLIST
 		;;
 	urpm-rpm)
+		if [ -n "$dryrun" ] ; then
+			fatal "--dry-run is not supported yet"
+		else
 			showcmd urpme --report-orphans
 			sudocmd urpme --auto-orphans
+		fi
 		;;
 	#emerge)
 	#	sudocmd emerge --depclean
@@ -70,7 +81,12 @@ case $PMTYPE in
 	#	sudocmd revdep-rebuild
 	#	;;
 	pacman)
+		if [ -n "$dryrun" ] ; then
+			info "Autoorphans packages list:"
+			sudocmd pacman -Qdtq
+		else
 			sudocmd pacman -Qdtq | sudocmd pacman -Rs -
+		fi
 		;;
 	#slackpkg)
 		# clean-system removes non official packages
@@ -89,10 +105,14 @@ case $PMTYPE in
 		sudocmd zypper packages --orphaned
 		# FIXME: x86_64/i586 are duplicated
 		local PKGLIST=$(zypper packages --orphaned | tail -n +5 | cut -d \| -f 3 | sort -u)
-		sudocmd zypper remove --clean-deps $PKGLIST
+		docmd epm remove $dryrun --clean-deps $PKGLIST
 		;;
 	xbps)
-		CMD="xbps-remove -o"
+		if [ -n "$dryrun" ] ; then
+			fatal "--dry-run is not supported yet"
+		else
+			sudocmd xbps-remove -o
+		fi
 		;;
 	*)
 		fatal "Have no suitable command for $PMTYPE"

bin/epm-autoremove

 #!/bin/sh
 #
-# Copyright (C) 2012, 2016  Etersoft
-# Copyright (C) 2012, 2016  Vitaly Lipatov <lav@etersoft.ru>
+# Copyright (C) 2012, 2017  Etersoft
+# Copyright (C) 2012, 2017  Vitaly Lipatov <lav@etersoft.ru>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -32,6 +32,13 @@ __epm_autoremove_altrpm_pp()
 	[ -n "$force" ] || libexclude=$libexclude'[^-]*$'
 	showcmd "apt-cache list-nodeps | grep -E -- \"$libexclude\""
 	pkgs=$(apt-cache list-nodeps | grep -E -- "$libexclude" )
+
+	if [ -n "$dryrun" ] ; then
+		info "Packages for autoremoving:"
+		echo "$pkgs"
+		return 0
+	fi
+	
 	[ -n "$pkgs" ] && sudocmd rpm -v -e $pkgs && flag=1
 
 	if [ -n "$flag" ] ; then
@@ -63,6 +70,13 @@ __epm_autoremove_altrpm_lib()
 		| grep -E -v -- "-(devel|devel-static|debuginfo)$" \
 		| grep -E -v -- "-(util|utils|tool|tools|plugin|daemon|help)$" \
 		| grep -E -v -- "^(libsystemd|libreoffice|libnss|libvirt-client|libvirt-daemon|libsasl2-plugin|eepm)" )
+
+	if [ -n "$dryrun" ] ; then
+		info "Packages for autoremoving:"
+		echo "$pkgs"
+		return 0
+	fi
+
 	[ -n "$pkgs" ] && sudocmd rpm -v -e $pkgs && flag=1
 
 	if [ -n "$flag" ] ; then
@@ -96,6 +110,9 @@ epm_autoremove()
 case $DISTRNAME in
 	ALTLinux)
 		__epm_autoremove_altrpm
+
+		[ -n "$dryrun" ] && return
+
 		docmd epm remove-old-kernels
 		
 		if which nvidia-clean-driver 2>/dev/null ; then
@@ -110,9 +127,12 @@ esac
 
 case $PMTYPE in
 	apt-dpkg|aptitude-dpkg)
-		sudocmd apt-get autoremove
+		sudocmd apt-get autoremove $dryrun
 		;;
 	aura)
+		if [ -n "$dryrun" ] ; then
+			fatal "--dry-run is not supported yet"
+		fi
 		sudocmd aura -Oj
 		;;
 	yum-rpm)
@@ -123,10 +143,13 @@ case $PMTYPE in
 			# FIXME: package-cleanup have to use stderr for errors
 			local PKGLIST=$(package-cleanup -q --leaves | grep -v "^eepm-")
 			[ -n "$PKGLIST" ] || break
-			sudocmd yum remove $PKGLIST
+			showcmd epm remove $PKGLIST
 		done
 		;;
 	dnf-rpm)
+		if [ -n "$dryrun" ] ; then
+			fatal "--dry-run is not supported yet"
+		fi
 		sudocmd dnf autoremove
 		;;
 	# see autoorhans
@@ -134,6 +157,9 @@ case $PMTYPE in
 	#	sudocmd urpme --auto-orphans
 	#	;;
 	emerge)
+		if [ -n "$dryrun" ] ; then
+			fatal "--dry-run is not supported yet"
+		fi
 		sudocmd emerge --depclean
 		assure_exists revdep-rebuild
 		sudocmd revdep-rebuild
@@ -158,10 +184,13 @@ case $PMTYPE in
 		sudocmd zypper packages --unneeded
 		# FIXME: x86_64/i586 are duplicated
 		local PKGLIST=$(zypper packages --unneeded | tail -n +5 | cut -d \| -f 3 | sort -u)
-		sudocmd zypper remove --clean-deps $PKGLIST
+		showcmd epm remove --clean-deps $PKGLIST
 		;;
 	xbps)
-		CMD="xbps-remove -O"
+		if [ -n "$dryrun" ] ; then
+			fatal "--dry-run is not supported yet"
+		fi
+		sudocmd xbps-remove -O
 		;;
 	*)
 		fatal "Have no suitable command for $PMTYPE"

bin/epm-remove

@@ -234,7 +234,19 @@ epm_remove()
 	[ -n "$pkg_files" ] && pkg_names="$pkg_names $(epm query $pkg_files)"
 
 	[ -n "$pkg_names" ] || fatal "Remove: missing package(s) name."
+
+	if [ -n "$dryrun" ] ; then
+		info "Packages for removing:"
+		echo "$pkg_names"
+		return
+	fi
+
 	epm_remove_low $pkg_names && return
+	local STATUS=$?
+
+	if [ -n "$direct" ] ; then
+		return $STATUS
+	fi
 
 	# get package name for hi level package management command (with version if supported and if possible)
 	pkg_names=$(__epm_get_hilevel_name $pkg_names)